278 



Birge — Notes on Cladocera. 



Washington Harbor, Isle Royale, was carefully examined. 

 There was a very scanty pelagic fauna. This was true of all 

 places where I dredged on the north shore of Lake Superior. In 

 the shallows at the head of the harbor were found Drepanothrix 

 dentata in large numbers (not previously found except at 

 Madison), Alona falcata, Chydorus rugidosns, Pleuroxus nanus. 



In the following table I denotes that the species was found in 

 the littoral waters; p, that it is pelagic; m, that it was found 

 in marshy waters. 



Table showing! the species of Cladocera collected in central Wiscon- 

 sin and northern Wisconsin and Michigan. 





to 

 CD • 



So 



ffl 





 to 



CD 



a 

 a 



a 



CD 

 D 



n 

 '3 



CD 

 O 

 CD 



i 



to 



.21 

 p 



hs 



P 



lp 

 lp 

 P 



CD 



a 



p 



m 



m 



m 

 m 



M 



a 

 ,p 



a 







EH 



]p 

 1 



P 



m 

 m 



cd 



P 

 C< 



eg 



O 



P 



i 





CD 

 O 



a 

 



<5PQ 

 P 



P 



O 



CO 



1— 1 



s 



M 



3. 

 CD 



6 



CD 





 O 



Holopediid^:. 



Holopedium gibberum, 

 Zad 





Sidid^e. 



Sida crystallina, 0. F. 

 M 



1 

 1 



1 

 lp 



IP 



1 



p 



p 

 ip 

 ip 



i 



X 



lp 

 ]p 



1 

 1 



1 



Daphnella brachyura, 

 Liev 



Pi 

 1 



Daphnella Br andti- 

 ana, Fisch 



1 



1 



m 



Latona set if era, 0. F. 

 M 



1 









1 



IP 



Latonopsis occident- 

 alism Birge 



m 

 1 



m 

 1 



m 

 1 



1 



m 



m 

 1 



m 

 m 



P 











DAPHNIIDiE. 



Simocephalus vetulus, 

 0. F. M 



1 

 1 



1 



1 

 1 



m 

 1 



1 



X 



in 

 m 









Simocephalus serrula- 

 tus, Koch 







1 



Simocephalus exspino- 

 sus, Koch 





Ceriodaphnia reticu- 

 lata, Jur 



Ceriodaphnia pulch- 

 ella, Sars 



Ceriodaphnia consors, 

 Birge 



m 

 1 



m 

 m 











1 

 1 



1 





1 



... 



